Master Lock XR20 Manual de servicio descargar pdf (Pagina 43)

Figure 3.10 Set external interlock

3.1.4 Calibration Commands

Figure 3.11 describes the calibration commands. Calibration commands allow calibration of five

digital potentiometers, display of the firmware and hardware revisions, and reset the digital

potentiometers to the factory calibration settings. All of these commands can be made when the

power supply is in either the standby or power mode state.

To enter the calibration commands, first press the menu key. The over voltage trip LED will

initially flash. Then press the item key 3 times. The voltage display will flash CAL

(calibration). Press enter for 10 seconds or press clear to exit the calibration command menu.

Upon entering the calibration commands, the output voltage will be displayed in the voltage

display, the potentiometer setting, 0 to 255, will be displayed in the right three digits of the

current display, and P and 1 will alternately flash in the left digit of the current display.

Potentiometer 1 adjusts the gain of the voltage feedback amplifier, potentiometer 2 adjusts the

input offset voltage of the voltage feedback amplifier, potentiometer 3 adjusts the gain of the

current feedback amplifier, potentiometer 4 adjusts the input offset voltage of the current

feedback amplifier, and potentiometer 5 adjusts the gain of the reference which is used for the

digital to analog and analog to digital converters.

Pressing the item key advances control to potentiometer 2. The left digit of the current display

will alternately flash P and 2, the output voltage will be displayed in the voltage display, and the

potentiometer setting, 0 to 255, will be displayed in the right three digits of the current display.

Pressing the item key again will advance the control to potentiometer 3. Now the output current

will be displayed in the current display, the potentiometer setting, 0 to 255, will be displayed in

the right three digits of the voltage display, and the left digit of the voltage display will

alternately flash P and 3.

1 2 ... 38 39 40 41 42 43 44 45 46 47 48 ... 128 129

Sin comentarios

Master Lock XR20 Manual de servicio Pagina 43